Bio-Rad ChromLab™ Software - Manual (Page 251)

Evaluating Fractions
User Guide | 249
The color scale is based on the column chosen and is relative among all available
fractions of the run. A darker color represents a greater value and tubes or valve
positions that do not contain fractions appear dimmed, for example
Viewing Heat Map Details
To change the displayed trace
 Select another UV trace from the dropdown list (available only if the
multi-wavelength UV detector was used in the method).
To change the values to display
 Select Area, Concentration, Amount, Molarity, or 280/260 (or 255) from the
Color by dropdown list.